Microchip ATMEGA644A-MU, 8 bit AVR, megaAVR Microcontroller, 20 MHz, 64kB FLASH, 44-Pin VQFN

Subtotal (1 unit)*

TWD166.00

(exc. GST)

TWD174.30

(inc. GST)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from January 16, 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +TWD166.00

*price indicative

Packaging Options:
RS Stock No.:
131-0317
Mfr. Part No.:
ATMEGA644A-MU
Manufacturer:
Microchip
Find similar products by selecting one or more attributes.
Select all

Brand

Microchip

Series

megaAVR

Product Type

Microcontroller

Package Type

VQFN

Mount Type

Surface

Pin Count

44

Device Core

AVR

Data Bus Width

8bit

Program Memory Size

64kB

Interface Type

SPI, USART

Maximum Clock Frequency

20MHz

RAM Size

4kB

Maximum Supply Voltage

5.5V

Number of Programmable I/Os

32

Minimum Operating Temperature

-40°C

Analogue Comparators

1

Maximum Operating Temperature

85°C

Standards/Approvals

No

Height

0.95mm

Length

7.1mm

Width

7.1 mm

Minimum Supply Voltage

1.8V

Program Memory Type

FLASH

Instruction Set Architecture

RISC

Number of Timers

2

Automotive Standard

No

ADCs

8 x 10 Bit

8-Bit megaAVR Microcontrollers, 32KB to 256KB Flash


Here at RS Components we have various megaAVR 8-bit microcontrollers from Atmel. Each of the microcontrollers is based on an enhanced RISC architecture and feature QTouch library support. All the microcontroller types have varying Kb of In-System Programmable Flash, EEPROM and SRAM as well as varying pin and package types.

Types of megaAVR 8-bit microcontrollers

•ATmega32

•ATmega64

•ATmega128

•ATmega324

•ATmega325

•ATmega406

•ATmega640

•ATmega644

•ATmega645

•ATmega1280

•ATmega1281

•ATmega1284

•ATmega2560

•ATmega2561

•ATmega3250

•ATmega6450

Related links